Strong effect on dentin after the use of high concentrations of citric acid: An assessment with co-site optical microscopy and ESEM

Reis, Cecília; De‐Deus, Gustavo; Leal, Fernanda; Azevedo, Erica M.; Coutinho-Filho, Tauby de Souza; Paciornik, Sidnei

doi:10.1016/j.dental.2008.03.027

Cited by 59 publications

(75 citation statements)

References 21 publications

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“…The concentration of citric acid used by Eldeniz et al (20) is almost two times that of the present study, which probably intensified the demineralizing action of this solution. The chelating effect of citric acid increases with the increase of its concentration (22).…”

Section: Discussionmentioning

confidence: 99%

Chitosan: effect of a new chelating agent on the microhardness of root dentin

et al. 2012

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The effect of solutions of 0.2% chitosan, 15% EDTA and 10% citric acid on the microhardness of root dentin was evaluated comparatively in this study. Thirteen sound human maxillary central incisors were selected and decoronated at the cementoenamel junction. Ten roots were set into rapid polymerization acrylic resin and the root/resin block was fitted to the cutting machine to obtain slices from the cervical third. The first slice was discarded and the second slice was divided into four quadrants. Each quadrant was used to construct a sample, so that 4 specimens were obtained from each root slice, being one for each chelating solution to be tested: 15% EDTA, 10% citric acid, 0.2% chitosan and distilled water (control). The specimens were exposed to 50 µL of the solution for 5 min, and then washed in distilled water. A microhardness tester (Knoop hardness) with a 10 g load was used for 15 s. Data were analyzed statistically by one-way ANOVA and Tukey-Kramer test (α=0.05). The other 3 roots had the canals instrumented and irrigated at the end of the biomechanical preparation with the test solutions, and then examined by scanning electron microscopy (SEM) for qualitative analysis. All solutions reduced the microhardness of root dentin in a way that was statistically similar to each other (p>0.05) but significantly different from the control (p>0.05). The SEM micrographs showed that the three solutions removed smear layer from the middle third of the root canal. In conclusion, 0.2% chitosan, 15% EDTA and 10% citric acid showed similar effects in reducing dentin microhardness.

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Section: Discussionmentioning

confidence: 99%

Chitosan: effect of a new chelating agent on the microhardness of root dentin

et al. 2012

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“…However, most of the studies assume these drinks as the main factors in tooth discoloration development 26,23 . Other similar investigations pointed out that highly pigmented, acidic beverages not only caused tooth discoloration but also dissolution of the enamel [27][28][29][30] . Joiner et al also showed that black tea and red wine components had a profound eff ect on in vitro pellicle maturation while causing thickened layers of stained material to build up 23 .…”

Section: Discussionmentioning

confidence: 99%

Risk Factors Associated with Black Tooth Stain

Prskalo

Sever

Alerić

et al. 2017

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SUMMARY -Th e aim of the study was to show whether there is any infl uence of food, drink or drug intake on the formation of tooth discoloration. A total of 500 patients aged 15-25 years were examined to take part in the study. Of these, 60 patients were selected and divided into two groups of 30 patients each. Group 1 included patients with black pigmentation on vestibular/oral tooth surfaces. Group 2 included patients without discoloration (control). Data were recorded in a questionnaire. Atomic absorption spectrometry was used to determine elements in discoloration samples. Th e Caries Risk Test (CRT) buff er was used to assess buff er capacity of saliva, while CRT bacteria were used to determine the presence of Streptococcus mutans and Lactobacillus spp. Statistically signifi cant betweengroup diff erences were found for the intake of collard greens and beets (p<0.05), but not for other vegetables. As for drink consumption, patients with pigmentation reported less wine intake (p<0.05) than those without pigmentation. Th ere was no diff erence according to drug intake between patients with and without pigmentation. Patients with pigmentation were older, smoked and had lower saliva pH with lower presence of Streptococcus mutans than those without pigmentation (p<0.05). In tooth discoloration samples, there were traces of calcium, magnesium, iron, copper and zinc. Th e appearance of tooth discoloration is infl uenced by many factors, among which diet and saliva seem to be very important. Our study showed that patients with black pigmentation used to take more beets, while patients without pigmentation were taking more collard greens and red wine.

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“…Takeda et al 20 also concluded that irrigation with 6% phosphoric acid, 6% citric acid, and 17% EDTA cannot remove the whole smear layer from the canal walls. According to Reis et al, 21 citric acid solutions removed the smear layer after 60 seconds of application.…”

Section: Smear Layer Removalmentioning

confidence: 99%

Unusual Root Canal Irrigation Solutions

Mohammadi

Jafarzadeh

Shalavi

et al. 2017

The Journal of Contemporary Dental Practice

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Microorganisms and their by-products play a critical role in pulp and periradicular pathosis. Therefore, one of the main purposes of root canal treatment is disinfection of the entire system of the canal. This aim may be obtained using mechanical preparation, chemical irrigation, and temporary medication of the canal. For this purpose, various irrigation solutions have been advocated. Common root canal irrigants, such as sodium hypochlorite, chlorhexidine, and a mixture of tetracycline, acid, and detergent have been extensively reviewed. The aim of this review was to address the less common newer root canal irrigation solutions, such as citric acid, maleic acid, electrochemically activated water, green tea, ozonated water, and SmearClear.

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Strong effect on dentin after the use of high concentrations of citric acid: An assessment with co-site optical microscopy and ESEM

Cited by 59 publications

References 21 publications

Chitosan: effect of a new chelating agent on the microhardness of root dentin

Chitosan: effect of a new chelating agent on the microhardness of root dentin

Risk Factors Associated with Black Tooth Stain

Unusual Root Canal Irrigation Solutions

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